Mineral Species containing Tellurium (Te)

Element Properties, Isotopic Compositions for Tellurium

**Tellurium (Te) Element Properties**
Atomic Mass	127.6
Atomic Number	52
Name Origins	Latin, tellus = "earth."
Year Discovered	1783
Discovery Credits	Discovered by Baron Franz Joseph Muller von Reichenstein at Subiu, Romania.
Remarks	Silvery white, metallic looking in bulk but usually obtained as dark gray powder. Semi-metal. Burns in air or oxygen. Unaffected by water or HCl but dissolves in HNO3. Used in alloys to improve machine ability; chemicals, catalysts, electronics. Diagnostic tests: Tellurium and tellurides are detected by heating the powdered mineral in a test tube with 5cc of concentrated H₂SO₄ acid. The presence of a reddish-violet color suggests Te. After cooling, addition of water will cause the color to disappear and a grayish black precipitate of tellurium will appear. Open tube test of the powdered mineral oxidizes tellurium to TeO₂ which passes up the tube as a white smoke and condenses near the heated part as a white coating. The coating can be fused into a globule which is yellow when hot and white when cold. Closed tube test of the powdered mineral causes tellurium to volatize and condense on the hot glass as fused globules having a metallic luster. Minor amounts of white oxide may be produced along with the metallic globules. On charcoal, the blowpipe produces a white sublimate near the assay somewhat resembling the test for antimony. The sublimate can be blasted with the blowpipe flame and imparts a pale greenish color to the flame test.
References	Emsley, J., 1991; THE ELEMENTS : Sec. Ed., Clarendon Press, Oxford, 251 p.
See Also	WebElements, ChemiCool

**Naturally Occurring Isotopes**
Symbol	Isotope Mass	Isotope Nuclide Number	Isotope Number	Natural Abundance	Half-life	Half-life Units	Decay Mode	Decay Mode MeV	Decay Mode %
Te	119.904048	120	52	0.0090%		Stable
Te	121.903054	122	52	2.5700%		Stable
Te	122.904271	123	52	0.8900%	1.3x10¹³	Years	EC	0.052	100.00%
Te	123.902823	124	52	4.7600%		Stable
Te	124.904433	125	52	7.1000%		Stable
Te	125.903314	126	52	18.8900%		Stable	beta	0.697	100.00%
Te	126.905227	127	52	0.0000%	9.8	Hours
Te	127.904463	128	52	31.7300%		Stable
Te	129.906229	130	52	33.97	2.4x10²³	Years	?	?	100.00%

Tellurium (Te) Minerals sorted by Descending Weight Percent

Click here for List sorted by Mineral Name

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**157 Minerals containing Tellurium (Te) sorted by Descending Weight Percent**
% Te	Mineral Name	Chemical Formula	MW
90.19 % Te	Dilithium *	Li2Te	141.48
82.05 % Te	Frohbergite #	FeTe2	311.05
81.30 % Te	Melonite #	NiTe2	313.89
81.24 % Te	Mattagamite	CoTe2	314.13
79.95 % Te	Tellurite #	TeO2	159.60
79.95 % Te	Paratellurite	TeO2	159.60
72.24 % Te	Walfordite !	(Fe+++,Te++++++)Te++++3O8	591.76
69.78 % Te	Cameronite	AgCu7Te10	1,828.69
69.49 % Te	Carlfriesite	CaTe++++2Te++++++O8	550.87
68.52 % Te	Winstanleyite	TiTe++++3O8	558.68
68.50 % Te	Imgreite ?	NiTe	186.29
66.76 % Te	Vulcanite	CuTe	191.15
66.21 % Te	Kostovite	CuAuTe4	770.91
64.98 % Te	Denningite	(Mn,Zn)Te2O5	392.75
64.00 % Te	Rajite	CuTe++++2O5	398.74
63.90 % Te	Gaotaiite	Ir3Te8	1,597.46
62.54 % Te	Mackayite #	Fe+++Te2O5(OH)	408.05
61.16 % Te	Spiroffite	(Mn,Zn)2Te3O8	625.90
61.12 % Te	Tellurantimony	Sb2Te3	626.30
60.01 % Te	Rodalquilarite	H3Fe+++2(Te++++O3)4Cl	850.55
59.95 % Te	Blakeite #	Fe2(TeO3)3	638.49
59.67 % Te	Zincospiroffite !	Zn2Te3O8	641.58
59.39 % Te	Merenskyite	(Pd,Pt)(Te,Bi)2	386.76
59.36 % Te	Sylvanite #	(Au,Ag)2Te4	429.89
58.92 % Te	Rickardite #	Cu7Te5	1,082.82
58.22 % Te	Radhakrishnaite	PbTe3(Cl,S)2	657.52
57.04 % Te	Shuangfengite	IrTe2	447.42
56.75 % Te	Emmonsite #	Fe+++2Te++++3O9·2(H2O)	674.52
56.44 % Te	Krennerite #	AuTe2	452.17
56.44 % Te	Calaverite #	AuTe2	452.17
53.69 % Te	Empressite #	AgTe	235.27
53.65 % Te	Borovskite	Pd3SbTe4	951.41
53.36 % Te	Balyakinite	CuTeO3	239.14
52.38 % Te	Kinichilite	Mg0.5[Mn++Fe+++(TeO3)3]·4.5(H2O)	730.80
52.11 % Te	Keystoneite	Mg0.5[Ni++Fe++(TeO3)3]·4.5(H2O)	734.55
51.79 % Te	Montbrayite #	(Au,Sb)2Te3	739.12
51.64 % Te	Zemannite	Mg0.5[Zn++Fe+++(TeO3)3]·4.5(H2O)	741.25
51.38 % Te	Weissite #	Cu1.9Te	248.34
50.15 % Te	Vavrinite !	Ni2SbTe2	491.04
50.05 % Te	Cliffordite	UTe3O9	764.82
49.62 % Te	Graemite	CuTeO3·(H2O)	257.16
49.14 % Te	Mroseite	CaTe++++(CO3)O2	259.69
48.64 % Te	Hexatestibiopanickelite	(Ni,Pd)(Te,Sb)	196.76
48.11 % Te	Kitkaite	NiTeSe	265.25
47.89 % Te	Sonoraite	Fe+++Te++++O3(OH)·(H2O)	266.47
47.80 % Te	Tellurobismuthite #	Bi2Te3	800.76
47.34 % Te	Chekhovichite	(Bi,Pb,Fe)2Te4O11	1,078.24
46.90 % Te	Henryite	Cu4Ag3Te4	1,088.19
46.51 % Te	Muthmannite #	AgAuTe2	556.88
46.37 % Te	Teineite #	CuTeO3·2(H2O)	275.17
46.15 % Te	Tlapallite	H6(Ca,Pb)2Cu3(SO4)(Te++++O3)4(Te++++++O6)	1,382.46
46.13 % Te	Kochkarite	PbBi4Te7	1,936.32
44.93 % Te	Rucklidgeite	(Bi,Pb)3Te4	1,136.01
44.65 % Te	Testibiopalladite	PdTe(Sb,Te)	357.23
44.61 % Te	Volynskite	AgBiTe2	572.05
43.02 % Te	Stutzite	Ag5-xTe3,(x=0.24-0.36)	889.78
42.63 % Te	Mazzettiite !	Ag3HgPbSbTe5	1,493.72
42.41 % Te	Temagamite	Pd3HgTe3	902.65
41.63 % Te	Poughite	Fe+++2(TeO3)2(SO4)·3(H2O)	613.00
40.83 % Te	Moncheite	(Pt,Pd)(Te,Bi)2	468.81
40.47 % Te	Sopcheite	Ag4Pd3Te4	1,261.13
39.88 % Te	Choloalite	CuPb(Te++++O3)2	639.96
38.95 % Te	Xocolatlite !	Ca2Mn++++2Te++++++2O12·H2O	655.24
38.88 % Te	Coloradoite #	HgTe	328.19
38.11 % Te	Altaite #	PbTe	334.80
37.91 % Te	Tsumoite	BiTe	336.58
37.62 % Te	Kotulskite	Pd(Te,Bi)	254.37
37.16 % Te	Hessite #	Ag2Te	343.34
36.19 % Te	Tetradymite #	Bi2Te2S	705.23
36.18 % Te	Frankhawthorneite	Cu2Te++++++O4(OH)2	352.70
34.76 % Te	Telluropalladinite	Pd9Te4	1,468.18
33.42 % Te	Yafsoanite	Ca3Te2Zn3O12	763.60
33.33 % Te	Plumbotellurite	PbTe++++O3	382.80
33.33 % Te	Fairbankite	PbTe++++O3	382.80
33.09 % Te	Utahite !	Cu5Zn3(Te++++++O4)4(OH)8·7(H2O)	1,542.46
32.90 % Te	Petzite #	Ag3AuTe2	775.77
32.77 % Te	Cuzticite	Fe+++2Te++++++O6·3(H2O)	389.34
31.62 % Te	Cesbronite	Cu5(TeO3)2(OH)6·2(H2O)	807.00
31.62 % Te	Cesbronite-x	Cu5(TeO3)2(OH)6·2(H2O)	807.00
31.54 % Te	Kawazulite	Bi2(Te,Se,S)3	728.32
31.45 % Te	Kolarite	PbTeCl2	405.71
31.41 % Te	Pilsenite #	Bi4Te3	1,218.72
30.81 % Te	Moctezumite	Pb(UO2)(TeO3)2	828.42
30.12 % Te	Nagyagite #	AuPb(Sb,Bi)Te2-3S6	1,059.12
29.98 % Te	Keithconnite	Pd3-xTe(x=0.14 to 0.43)	425.58
29.52 % Te	Mcalpineite	Cu++3Te++++++O6·(H2O)	432.25
28.63 % Te	Schmitterite	(UO2)TeO3	445.63
28.54 % Te	Telargpalite	(Pd,Ag)3Te	447.15
28.34 % Te	Xocomecatlite	Cu3Te++++++O4(OH)4	450.26
28.34 % Te	Jensenite	Cu++3Te++++++O6·2(H2O)	450.26
28.24 % Te	Oboyerite	Pb6H6(Te++++O3)3(Te++++++O6)2·2(H2O)	2,259.27
28.14 % Te	Eztlite	Pb2Fe+++6(Te++++O3)3(Te++++++O6)(OH)10·8(H2O)	1,814.07
27.91 % Te	Sulphotsumoite	Bi3Te2S	914.21
27.43 % Te	Michenerite #	(Pd,Pt)BiTe	465.17
27.02 % Te	Aleksite	PbBi2Te2S2 (?)	944.49
26.52 % Te	Leisingite !	Cu(Mg,Cu,Fe,Zn)2Te++++++O6·6(H2O)	481.14
26.27 % Te	Kuranakhite	PbMn++++Te++++++O6	485.73
26.06 % Te	Pasavaite !	Pd3Pb2Te2	989.23
25.96 % Te	Bambollaite	Cu(Se,Te)2	245.79
25.01 % Te	Juabite !	(Ca,Fe++)Cu10(Te++++O3)4(As+++++O4)4(OH)2·4(H2O)	2,040.94

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(! - New Dana Classification Number Has Been Changed or Added)
(? - IMA Discredited Mineral Species Name)
(# - Grandfathered as valid)